Evaporating and distilling apparatus.



J. T. DAVIS. BVAPORATING AND DISTILLIN APPLICATION FILED APR.21, 1913. RE

G APPARATUS.

NEWED JUNE 13, 1914.

Patented July 21, 19M.

To condense INVENTOR, Jrfiw T 8W, BY flux; 1h. w u,

ATTORNEY WITNESSES tilling Apparatus,

rEI) STATES PATENT 0 EVAPORATIN G AND DISTILLIN G APPARATUS. I

icence.

Application filed April 21, 1913, Serial No. 762,663. Renewed June Specification of Letters Patent.

Patente To all whom it may concern Be it known that I, JOHN T. DAVIS, a citizen of the United States, residing at Alameda, in the county of Alameda and State of California, have invented new and useful Improvements in Evaporating and Di'sof which the following is a specification.

This invention is to provide an improved and effective apparatus for the distillation of oil and other liquids which comprise constituents of different gravities and vaporizable at different temperatures.

In the accompanying drawing, Figure 1 is a vertical section of my improved apparatus,- Fig. 2 is a cross section on the line 22 of Fig. 1; Fig. '3 is an enlarged vertical section of a portion thereof; Fig. 4 is a side view of a lower expansible ring.

Referring to the drawing, 1 indicates a cylindrical casing of a receptacle, which is divided into an oil chamber 2 vaporizing chambers 3, 4 and 5. plied to saidoil chamber by a pipe 6, lead ing into the top of said cylindrical receptacle, and vapor is drawn from said vaporizing chambers by means of pipes 7, 8 and 9, which lead to condensers, not shown. txtending coaxially through said receptacle are inner and outer cylindrical tubes 10, 11, forming therebetween an annular steam chamber 12, closed at the top and bottom by annular plates 13, 14, pressed against the tubes 10, 11, by cap nuts 15 screwed on the ends of bolts 16 passing through said plates. A steam supply pipe 17 connects with the top of a vertical coil of pipe 18 within the inner tube 10, the other end of said coil being connected, as shown at 19, with-the top of the annular steam chamber 12, an outlet pipe 21 being connected with the bottom of said steam chamber. Secured upon the upper annular plate 13, and surrounding the upper portion of the coil of pipe 18, is a flue 22,-through which products of'combustion from a'burner 23 at the bottom of the tube "10 can escape after passing up around the coils ofpipe 18.

The bottom of the oil chamber 2 is formed by a transverse partition 24, which extends from the cy'l short distance of the outer tubell. Upon the inner portion of said partition rests an eXpansible-spring ring 26, which is pressed inwardly against its resilient force by screws ends of said side at the top, and 1 Oil is supindrical casing 1 to within a' 27, screwed through the By screwing said screws FFTGE.

IS TOPPING COMPANY, F ARIZONA.

a July 21, 191a.

13, 1914. Serial No. 845,009.

casing, the inner said r1ng. inwardly, more or less, the diameter of the ring can be decreased as desired, .and t hus can be varied the space between said ring and the outer tube 11. This variation in the size of the space surrounding the tube or cylinder 11 is most desirable in order for o1ls of different gr to adjust the space avities. In other words, when operating with a heavy oil the space should be increased by opening the ring, and the space should be decreased by closing in the ring when operating with a light oil. The ring is when not under pressure so constructed that it is at its maximum size, so that pressure of the screws on the sides thereof will c moving the overlapping over each other. This i difiiculty because of the in diameter that has to The transverse izing chambers 3, 4, 5, central portion, and,

ompress the ring,

portions thereof s efi'ected without very small change be made.

partitions 28 of the vaporare depressed in their like the partition 24,

extend from the cylindrical wall 1 of the receptacle to within a short distance of the outer tube. Upon the inner portions of said partitions are e-Xpansible spring rings 29,

adjusted by screws 31, in

like manner as the ring 26, to vary the distance between said rings and the outer tube. of the receptacle connects veying away the residuum a low wall 33' surroundll, and from said bottom upon said bottom is mg the outer tube With the bottom a pipe 32 for conof the oil, and

within said wall leads a tube 34.

The following is the operation of the apparatus: Steam is admitted by the pipe 17 into the coil of pipe 18 where it is super-' heated by the products of combustion from the burner 23. Oil supplied by the pipe 6 to the chamber 2 escapes cular opening by the narrow cirbetween the outer tube 11 and the ring 26, and flows down in a thin film around the outer tube t vaporizing chamber 3, wh

stituents of the Oll are vaporized, by the pipes 7, and are conducted The remaining film a condenser.

well as that condensed hrough the upper ere-the lighter con and escape thereby to of oil, as

in the vaporizing chamber 3 and flowing to the bottom of the upper partition 28 escapes between the outer tube and the ring 29. and 0nd vaporizing chamber,

flows into the seewhere, by the heat I leum or the like, 4 0

ing the petroleum or the compartments, and means By superheating the steam before delivering it to theannular steam chamber I am enabled to obtain a high but easily limited degree of heat, and to utilize this heat for separating the volatile constituents of the oil. In this way I avoid the direct application of the heat of combustion to the surfaces over which the oil and asphaltic residuum flow.- It is found that, if said asphaltic residuum is permitted to flow over plates which are heated directly by the products of combustion, the asphaltum is changed in character and approximates anthracine. It is the objectof my invention to avoid this change and to retain the asphaltum in the character in which petroleum forms an ingredient of the asphaltum, this being the most valuable ingredient of natural asphaltum since it gives to it its elastic property. In the recovery of asphaltum from oil, the oil has heretofore been treated so that-the asphaltum loses this-valuable ingredient. By my invention, this ingredient is retained.

I claim:

1. In an apparatus for distilling petrothe combination with: a chamber, of means for supplying steam to the interior of the chamber, means forfeedlike in a thin film over-one surface of the chamber, means for applying heat to the opposed surface of the chamber, whereby the steam is interposed between the filmof oil and the applied heat, a casing inclosing the oil carrying surface of the chamber, partitions carried by the casing and extendin closely adjacent to the oil carrying-surface todivide the easing into for separately removing the distillates from each compartment.

2. In an apparatus for distilling petroleum and the like the combination with two vertical substantially concentric cylinders having an annular steam space between them, of means for feeding steam into said space, means for applying fire heat to one surface of the annulus, means for supplying oil in a thin verticallyfiowing film on the other surface of the annulus, vertically superposed. compartments whose floors are slightly spaced from the film-carrying surface, and means for separately removing the distillates from each compartment. v a

3. In an apparatus for distilling petroleum or the like, the combination with a casing, of a vertically arranged cylinder located within the casing, means for feeding the petroleum or the like in a thin film over the outer surface of the cylinder, partitions carried by the casing'and extending closely adjacent to and surrounding the outer surface of the cylinder to divide the casing into compartments, a second cylinder located within the first mentioned cylinder and spaced therefrom, means for supplying steam to the space between the cylinders, means for supplying heat to the interior of the second mentioned cylinder, and means for separately removing the distillates from each compartment.

4. In an apparatus for distilling petroleum or the like, the combination with a casing, of a vertically arranged cylinder located within the casing, means-for supplying heat to the interior of the casing, a partition carried by the casing and extending closely adjacent to and surrounding thecylinder to divide the easing into compartments, adjustable means carried by the partition to vary the space. between the inner edge of the partition and the cylinder, and means for separately removing the distillates from each compartment.

5. In an apparatus for distilling petroleum or the like, casing, of a vertically arranged cylinder located within the casing, means for supplying heat to the interior of the casing, a partition carried by the casing and extending closely adjacent to and surrounding the cylinder to divide the casinginto' compartments, a-split ring supported on the partition and surrounding the cylinder, means for varying the diameter of the ring, and means for separately removing" the distillates from each compartment. I

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

J OHN T. DAVIS.

Witnesses: I

F. M. Wmcerr, D. B. Brows.

the combination with a 

